Polls close in primary election ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page David L Ryan/globe staff Congressional primary voting took place Thursday in the state, where 52 percent of registered voters do not align themselves with any political party. Bill Greene/globe staff Elizabeth Childs called voters from her Brookline home. David L Ryan/globe staff Joe Kennedy III greeted supporters Thursday morning at Brookline High School. wendy maeda/globe staff Republican candidate Sean Bielat, right, greeted supporters after voting at the Norfolk Olive Day School in Norfolk. Stephan Savoia/associated press Elizabeth Warren voted at the Graham & Parks School in Cambridge. Steve Haines for the boston globe Congressman Bill Keating and his wife, Tevis, left, voted at St. John's Parish Center in Pocasset.